x/pkgsite: incorrect example output

[soroushj]

What is the URL of the page with the issue?

https://pkg.go.dev/github.com/soroushj/gosyphus@v1.0.0#example-package

What is your user agent?

Chrome 110 on Linux (Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36)

Screenshot

What did you do?

Ran the first package example.

What did you expect to see?

This output:

calculating the answer
calculating the answer
calculating the answer
the answer is 42
success

What did you see instead?

This output:

calculating the answer
the answer is 42
success

[soroushj]

I did some investigation. For the mentioned example, this is the response from /play/compile, which is correct:

{
  "Errors": "",
  "Events": [
    {
      "Message": "calculating the answer\n",
      "Kind": "stdout",
      "Delay": 0
    },
    {
      "Message": "calculating the answer\n",
      "Kind": "stdout",
      "Delay": 692931475
    },
    {
      "Message": "calculating the answer\nthe answer is 42\nsuccess\n",
      "Kind": "stdout",
      "Delay": 600101775
    }
  ],
  "Status": 0,
  "IsTest": false,
  "TestsFailed": 0
}

The problem is here:

for (const e of Events || []) {
  this.setOutputText(e.Message); // should *append* e.Message
  await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));
}

Because of the bug above, when there are multiple Events, only the last one is displayed.

[gopherbot]

Change https://go.dev/cl/467575 mentions this issue: static: fix playground